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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.223 ·

/mcp is dispatchable from thin clients

You can now run /mcp from thin clients where it was previously hidden.

Use it now Improvements
JSON All of v2.1.223
Use it nowTier: how much it should matter to you
4Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.223,
What probably matters to youSection of the release
What

The mcp command is now available in thin clients, where it previously had no dispatch marker and was hidden.

Details
  • The local mcp entry is marked thinClientDispatch: "post-text"; the local-jsx entry is marked thinClientDispatch: "twin".
  • The availability predicate treats any workspace-requiring command with a defined thinClientDispatch as usable in a thin client.
  • Both "twin" and "post-text" dispatch as post-text in that environment.
Evidence

thinClientDispatch: "twin"

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundle/mcp

See this entry in the whole of v2.1.223 →

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